WGU C955 Pre-Assessment Exam | Applied
Probability And Statistics Exam| Correctly
Answered And Graded A+
A subject in an extrasensory perception study is asked to guess
the color of a card that was randomly selected from a freshly
shuffled deck of cards. She did this experiment 100 times and
correctly guessed the color of the card 47 times.
What is the relative frequency of her choosing the correct color?
A) 47/100
B) 100/47
C) (100-47)/100
D) 100/(100-47) - Correct Answer - 47/100
A company has 7 employees: 5 have an MBA degree, and 2 do
not.
If an employee is chosen at random, what is the probability that
the employee has an MBA?
A) 2/5
B) 7/5
,C) 2/7
D) 5/7 - Correct Answer - 5/7
A random sample of candy found the color distribution as follows:
9 red, 2 green, 11 purple, 12 orange, and 8 yellow.
If one candy is selected at random, how likely is it that the candy
is green?
A) Not likely, as there is a 4.8% chance of selecting a green
candy
B) Just as likely as unlikely, as there is a 48% chance of selecting
a green candy
C) Impossible, as there is a 4.8% chance of selecting a green
candy
D) Not likely, as there is a 48% chance of selecting a green candy
- Correct Answer - Not likely, as there is a 4.8% chance of
selecting a green candy
A coin has two sides: heads and tails.
If three coins are tossed, what is the probability of getting an odd
number of heads?
,A) 3/8
B) 5/8
C) 1/2
D) 1/4 - Correct Answer - 1/2
A coin has two sides: heads and tails. The coin is flipped three
times.
Using H for heads and T for tails, what is the sample space for the
given experiment?
A) HHH, HHT, HTH, THH, HTT, THT, TTH, TTT
B) HHH, HHT, TTH, TTT
C) HTH, THT, HTT, TTH, TTT, HHH
D) HHH, HHT, HTH, THH, TTT - Correct Answer - HHH, HHT,
HTH, THH, HTT, THT, TTH, TTT
A quiz consists of three true or false questions.
What is the probability that there are exactly two true answers?
A) 1/8
B) 3/8
, C) 1/4
D) 3/4 - Correct Answer - 3/8
A six-sided die, with a number from 1 to 6 on each side, is rolled
twice.
What is the probability that two odd numbers are rolled
consecutively?
A) 1/2
B) 1
C) 1/4
D) 1/6 - Correct Answer - 1/4
A and B are events associated with an experiment with P( A) = .3
and P( B) = .5.
If A and B are independent, then what is the probability that A or B
occurs?
A) .15
B) .5
C) .65
